SE

seismic-picker-selection

Summarizes seismic phase picking methods and event detection strategies for research tasks.

Install

mkdir -p .claude/skills/seismic-picker-selection && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/5821" && unzip -o skill.zip -d .claude/skills/seismic-picker-selection && rm skill.zip

Installs to .claude/skills/seismic-picker-selection

Activation

This is the description your AI agent reads to decide when to run this skill — the better it matches your request, the more reliably it fires.

This is a summary the advantages and disadvantages of earthquake event detection and phase picking methods, shared by leading seismology researchers at the 2025 Earthquake Catalog Workshop. Use it when you have a seismic phase picking task at hand.
248 chars✓ has a “when” trigger
Beginner

Key capabilities

  • Compare seismic event detection methods
  • Evaluate phase picking algorithm tradeoffs
  • Select detection techniques based on resource availability
  • Analyze sensitivity and generalizability of seismology tools

How it works

The skill provides a comparative guide of seismic detection methods, detailing their performance characteristics, sensitivity, and computational requirements.

Inputs & outputs

You give it
Seismic phase picking task requirements
You get back
Recommended detection method and tradeoff analysis

When to use seismic-picker-selection

  • Selecting seismic event detection methods
  • Comparing phase picking algorithms
  • Researching earthquake data analysis techniques
  • Consulting best practices for seismology workflows

About this skill

Seismic Event Detection & Phase Picking Method Selection Guide

Overview: Method Tradeoffs

When choosing an event detection and phase picking method, consider these key tradeoffs:

MethodGeneralizabilitySensitivitySpeed, Ease-of-UseFalse Positives
STA/LTAHighLowFast, EasyMany
ManualHighHighSlow, DifficultFew
Deep LearningHighHighFast, EasyMedium
Template MatchingLowHighSlow, DifficultFew
  • Generalizability: Ability to find arbitrary earthquake signals
  • Sensitivity: Ability to find small earthquakes

Key insight: Each method has strengths and weaknesses. Purpose and resources should guide your choice.

STA/LTA (Short-Term Average / Long-Term Average)

Advantages

  • Runs very fast: Automatically operates in real-time
  • Easy to understand & implement: Can optimize for different window lengths and ratios
  • No prior knowledge needed: Does not require information about earthquake sources or waveforms
  • Amplitude-based detector: Reliably detects large earthquake signals

Limitations

  • High rate of false detections during active sequences
  • Automatic picks not as precise
  • Requires manual review and refinement of picks for a quality catalog

Template Matching

Advantages

  • Optimally sensitive detector (more sensitive than deep-learning): Can find smallest earthquakes buried in noise, if similar enough to template waveform
  • Excellent for improving temporal resolution of earthquake sequences
  • False detections are not as concerning when using high detection threshold

Limitations

  • Requires prior knowledge about earthquake sources: Need template waveforms with good picks from a preexisting catalog
  • Does not improve spatial resolution: Unknown earthquake sources that are not similar enough to templates cannot be found
  • Setup effort required: Must extract template waveforms and configure processing
  • Computationally intensive

Deep Learning Pickers

When to Use

  • Adds most value when existing seismic networks are sparse or nonexistent
  • Automatically and rapidly create more complete catalog during active sequences
  • Requires continuous seismic data
  • Best on broadband stations, but also produces usable picks on accelerometers, nodals, and Raspberry Shakes
  • Use case: Temporary deployment of broadband or nodal stations where you want an automatically generated local earthquake catalog

Advantages

  • No prior knowledge needed about earthquake sources or waveforms
  • Finds lots of small local earthquakes (lower magnitude of completeness, Mc) with fewer false detections than STA/LTA
  • Relatively easy to set up and run: Reasonable runtime with parallel processing. SeisBench provides easy-to-use model APIs and pretrained models.

Limitations

  • Out-of-distribution data issues: For datasets not represented in training data, expect larger automated pick errors (0.1-0.5 s) and missed picks
  • Cannot pick phases completely buried in noise - Not quite as sensitive as template-matching
  • Sometimes misses picks from larger earthquakes that are obvious to humans, for unexplained reason

References

  • This skill is a derivative of Beauce, Eric and Tepp, Gabrielle and Yoon, Clara and Yu, Ellen and Zhu, Weiqiang. Building a High Resolution Earthquake Catalog from Raw Waveforms: A Step-by-Step Guide Seismological Society of America (SSA) Annual Meeting, 2025. https://ai4eps.github.io/Earthquake_Catalog_Workshop/
  • Allen (1978) - STA/LTA method
  • Perol et al. (2018) - Deep learning for seismic detection
  • Huang & Beroza (2015) - Template matching methods
  • Yoon and Shelly (2024), TSR - Deep learning vs template matching comparison

When not to use it

  • Directly performing seismic data analysis
  • Automated real-time earthquake catalog generation

Limitations

  • Does not execute seismic data processing
  • Limited to methods covered in the 2025 Earthquake Catalog Workshop

How it compares

It provides a structured decision framework for researchers rather than executing the detection algorithms themselves.

Compared to similar skills

seismic-picker-selection side by side with the closest alternatives in the catalog.

SkillInstallsUpdatedSafetyDifficulty
seismic-picker-selection (this skill)16moNo flagsBeginner
literature-review5592moReviewAdvanced
openalex-database487moReviewIntermediate
scientific-critical-thinking187moReviewAdvanced

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